mirror of
https://github.com/SpaceVim/SpaceVim.git
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110 lines
3.1 KiB
Lua
110 lines
3.1 KiB
Lua
--=============================================================================
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-- autosave.lua --- autosave plugin
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-- Copyright (c) 2016-2023 Wang Shidong & Contributors
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-- Author: Wang Shidong < wsdjeg@outlook.com >
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-- URL: https://spacevim.org
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-- License: GPLv3
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--=============================================================================
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local default_opt = {
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timeoutlen = 60 * 5 * 1000,
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backupdir = '~/.cache/SpaceVim/backup/',
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save_all_buffers = false,
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event = { 'InsertLeave', 'TextChanged' },
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filetype = {},
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filetypeExclude = {},
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buftypeExclude = {},
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bufNameExclude = {},
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}
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local logger = require('spacevim.logger').derive('autosave')
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local f = require('spacevim.api').import('file')
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local autosave_timer = -1
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local M = {}
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local function location_path(bufname)
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if vim.fn.empty(default_opt.backupdir) == 1 then
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return bufname
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else
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local pth = f.unify_path(default_opt.backupdir, ':p')
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.. f.path_to_fname(bufname, '+=')
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.. '.backup'
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logger.info('backup path is:' .. pth)
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return pth
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end
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end
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local function save_buffer(bufnr)
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if
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vim.fn.getbufvar(bufnr, '&modified') == 1
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and vim.fn.empty(vim.fn.getbufvar(bufnr, '&buftype')) == 1
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and vim.fn.filewritable(vim.fn.bufname(bufnr)) == 1
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and vim.fn.empty(vim.fn.bufname(bufnr)) == 0
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then
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local lines = vim.fn.getbufline(bufnr, 1, '$')
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local f = location_path(vim.fn.bufname(bufnr))
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local ok, rst = pcall(vim.fn.writefile, lines, f)
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if not ok then
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logger.info('failed to autosave file:' .. f)
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logger.warn(rst)
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end
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if vim.fn.empty(default_opt.backupdir) == 1 then
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vim.fn.setbufvar(bufnr, '&modified', 0)
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vim.cmd('silent checktime ' .. bufnr)
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end
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end
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end
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local function auto_dosave(...)
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if default_opt.save_all_buffers then
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for _, nr in ipairs(vim.fn.range(1, vim.fn.bufnr('$'))) do
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save_buffer(nr)
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end
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else
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save_buffer(vim.fn.bufnr('%'))
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end
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end
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local function setup_timer(_timeoutlen)
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if vim.fn.has('timers') == 0 then
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logger.warn('failed to setup timer, needs `+timers` feature!')
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return
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end
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if _timeoutlen == 0 then
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vim.fn.timer_stop(autosave_timer)
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logger.debug('disabled autosave timer!')
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end
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if _timeoutlen < 1000 or _timeoutlen > 60 * 100 * 1000 then
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local msg =
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"timeoutlen must be given in millisecods and can't be > 100*60*1000 (100 minutes) or < 1000 (1 second)"
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logger.warn(msg)
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return
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end
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vim.fn.timer_stop(autosave_timer)
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autosave_timer = vim.fn.timer_start(_timeoutlen, auto_dosave, { ['repeat'] = -1 })
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if vim.fn.empty(autosave_timer) == 0 then
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logger.debug('setup new autosave timer, timeoutlen:' .. _timeoutlen)
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end
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end
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local function setup_events()
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if #default_opt.event > 0 then
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vim.api.nvim_create_autocmd(default_opt.event, {
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pattern = { '*' },
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callback = auto_dosave,
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})
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end
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end
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function M.config(opt)
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for option, value in pairs(default_opt) do
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if opt[option] ~= nil then
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logger.debug('set option`' .. option .. '` to :' .. vim.inspect(value))
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default_opt[option] = value
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end
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end
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setup_timer(default_opt.timeoutlen)
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setup_events()
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end
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return M
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